Well so far for the dressage Lucinda Fredricks of Australia is firmly holding onto the #1 spot.
Courageous Comet and Becky Holder for the USA is #5
Amy Tryon and Poggio ll are tied in 24th
and Alex Hua Tian with Chico the former Hong Kong racehorse are tied in 31st.
There is also a 67 year old man from Japan, Hiroshi Hoketsu, that will be competing but I can't even find what event he is to compete in. The NBC site is a bit hard to follow. He first competed in the 1964 olympics.
http://www.nbcolympics.com/athletes/...japanese+rider